I believe it's a centered double increase. You knit one, and without dropping the stitch off the needle, do a yarn over, and then knit one again in the same stitch.

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~Jane

There is no right way to knit; there is no wrong way to knit. So if anybody kindly tells you that what you are doing is "wrong," don't take umbrage; they mean well. Smile submissively, and listen, keeping your disagreement on an entirely mental level. They may be right, in this particular case, and even if not, they may drop off pieces of information which will come in very handy if you file them away carefully in your brain for future reference. ~Elizabeth Zimmerman

Well, if you're going to knit twice into the same stitch with a yarn over in between, you'd end up with two more stitches than you started. I'm pretty sure chevron patterns require both increases and decreases so it's not surprising that it would contain an increase. I think you think it's harder than it really is. Just give it a try.

__________________
~Jane

There is no right way to knit; there is no wrong way to knit. So if anybody kindly tells you that what you are doing is "wrong," don't take umbrage; they mean well. Smile submissively, and listen, keeping your disagreement on an entirely mental level. They may be right, in this particular case, and even if not, they may drop off pieces of information which will come in very handy if you file them away carefully in your brain for future reference. ~Elizabeth Zimmerman